{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "The results showed that although Taiwanese - Chinese PCOS patients tend to possess more risk factors for atherosclerosis than controls , there was no evidence to support that they have a greater CIMT at this age ."}
{"Chemical": []}